GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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similar organisms arise in distant geographic locations
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changes to an organism occur rapidly, within a few generations
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the environment in which a species lives is unrelated to natural selection
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new species that appear in the fossil record are actually descendants of older species
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Detailed explanation-1: -Charles Darwin was a British naturalist who proposed the theory of biological evolution by natural selection. Darwin defined evolution as “descent with modification, ” the idea that species change over time, give rise to new species, and share a common ancestor.
Detailed explanation-2: -Which of the following is one of Charles Darwin’s theories about evolution and natural selection, known as descent with modification? Explanation: As an example of decent with modification, Darwin observed different species of finches on the Galapagos Islands and thought that they had descended from a common ancestor.
Detailed explanation-3: -The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Detailed explanation-4: -Which of the following observations and inferences led Charles Darwin to his theory of natural selection as a mechanism for evolution? Individuals in a population of any species vary in many heritable traits.